Open a AMD Service Request from here: Online Service Request | AMD
Let them know what is going on. Maybe they can get some answers from Dell. I am sure if Dell is selling buggy AMD Laptops they may be interested in finding out what Dell is doing to resolve the issue.
Sine you bought 8 laptops , I am presuming, you are using it in a business environment. If so, let AMD also know.
Has anyone in Dell Forum mention anything about the laptop issues with that particular APU? if so what have they heard?